24020989 has 2 divisors, whose sum is σ = 24020990. Its totient is φ = 24020988.

The previous prime is 24020987. The next prime is 24020999. The reversal of 24020989 is 98902042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14516100 + 9504889 = 3810^2 + 3083^2 .

It is a cyclic number.

It is not a de Polignac number, because 24020989 - 2¹ = 24020987 is a prime.

Together with 24020987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24020981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12010494 + 12010495.

It is an arithmetic number, because the mean of its divisors is an integer number (12010495).

Almost surely, 2^24020989 is an apocalyptic number.

It is an amenable number.

24020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

24020989 is an equidigital number, since it uses as much as digits as its factorization.

24020989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 24020989 is about 4901.1211982566. The cubic root of 24020989 is about 288.5339767170.

The spelling of 24020989 in words is "twenty-four million, twenty thousand, nine hundred eighty-nine".